Actuating device with shift carrage lock

Abstract

An actuating device for transmitting shift commands to an automatic gearbox of a motor vehicle. The actuating device comprises a selector lever which is movable in a selector lane between an automatic shift lane and a sequential shift lane, a shift carriage for transmitting the shift commands to a gearbox transmission element, a separating device for separating the force transmission between the selector lever and the shift carriage, and a locking device for blocking the selector lever in at least one selector lever position. The locking device is set up to block the shift carriage. The shift carriage can be blocked not only in the shift-lock positions but also in the position of the shift carriage which corresponds to the selector lane position of the selector lever.

Description

[0001]This application is a National Stage completion of PCT / DE2008 / 050021 filed[0002]Jul. 30, 2008, which claims priority from German patent application serial no. 10 2007 038 495.7 filed Aug. 14, 2007.FIELD OF INVENTION[0003]The invention relates to an actuating device for transmitting shift commands to an automatic transmission of a.BACKGROUND OF INVENTION[0004]A similar type of activating device is known to the applicant, for instance, from patent documentation DE 102 52 009 B4. The known actuator device comprises a selector lever which is movable in a selector lane, between an automatic shift lane and a sequence shift lane. The known actuating device also comprises a kinematic transmitter having a shift carriage for a detachable coupling of the selector lever motion to a transmission-transmitter element, for instance towards a gear shift rod or towards a pull cable link connected with the transmission.[0005]It is required in such conventional generic actuating devices, which ha...

AI Technical Summary

Benefits of technology

[0029]Finally, an additional preferred embodiment provides that the selector lever fitting, the selector lever bearing, and the gate pin fitting are formed as a single part. This results in an especially simple constructive design, which is produced in a cost-effective manner with a minimal number of parts; and direct and play-free transfer of force is obtained due to the single part design of the important, force transmitting elements of the actuation unit.

Problems solved by technology

Such kinematic release of the selector lever from the shift carriage, and the simultaneous blocking of the shift carriage, relative to the enclosure of the actuating device, leads to configurations known art with mechanically complicated and sophisticated blocking mechanisms with numerous meshing parts.

Hereby, it is also required, due to potentially larger misapplied forces by the selector lever, that especially the blocking configuration needs to be designed as very robust, causing the use of more expensive parts.

Another problem of the described, known actuating devices is the fact that, because of a robust design and construction of the blocking mechanism, due to potentially larger forces, the selector lever kinetics becomes stiffer and requires more force, therefore, reducing the ease of use.

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